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A multi-regional computable general equilibrium model in the Haritage of A. Anas and I. Kim

A MULTI-REGIONAL COMPUTABLE GENERAL EQUILIBRIUM MODEL
IN THE HARITAGE OF A.ANAS AND I.KIM
by
Sungbin Cho
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(PLANNING)
December 2006
Copyright 2006 Sungbin Cho

The objective of this study is to establish an alternative modeling scheme for comprehensive urban transportation studies. The model developed in this study is based on Anas-Kim's computable general equilibrium model and expanded in applicability to address real world problems existent in complex urban systems.; The early conceptualization of a comprehensive general equilibrium (Anas, 1980) has turned into an operational model by Anas and Kim (1990, 1996), Anas and Xu (2000) and has been applied to small theoretical examples. Despite the sound theoretical background on which their model was developed, the equilibrium price formulation has an undesirable property of depending on number of factors, i.e., combination of input commodities and input locations in multi-regional context. A numerical example proves the model may not be computable, unless input data is strictly manipulated.; This study updates three aspects of the Anas-Kim's comprehensive general equilibrium model. First, the model has been expanded to accommodate for multiple households and industries. This allows for diverse preference and production technologies. Second, developers and local government are included as additional economic agents. By including developers, land use pattern is explicitly modeled. Finally, a CES function replaces the production function in the model, and a stable equilibrium price formulation is derived. The CES function used is constant return to scale, yet the unity sum of input share coefficients is held without any exponent on the coefficients.; To fulfill the object of study, the proposed model is applied to two distinctive data sets. A small data with 11 zones is created, and applied to evaluate characteristics of proposed model for the following selected parameters: elasticity of substitution, distance decay for intermediate goods movement, growing population, and spatial distribution of network capacity. The proposed model also demonstrates its applicability to real-world planning options, through a Southern California dataset. Impacts from changes in land use policies are analyzed with respect to regional production, household utility, and transportation system performance. In testing transportation system improvement options, the model shows capacity is of greater importance than free flow speed to improve regional mobility.

A MULTI-REGIONAL COMPUTABLE GENERAL EQUILIBRIUM MODEL
IN THE HARITAGE OF A.ANAS AND I.KIM
by
Sungbin Cho
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(PLANNING)
December 2006
Copyright 2006 Sungbin Cho